LPC54608 Board cannot display RGB565 image

zhixiangzeng — Tue, 22 Aug 2017 05:01:18 GMT

when I use SDK_2.2_LPC54608J512 - copy\boards\lpcxpresso54608\driver_examples\lcdc\lcdc_cursor demo to display a RGB565 image .in the lcdc_cursor.c I do these modifies:

1.I define a image array ： unsigned const char image[153600]={.0X29,0X64,0XC9,0X5B,0X8A,......}， 320*240 image ，16bbp565.

2.I define two functions :

void lcd_SetPixel(int x, int y, unsigned int uicolor);//piexl position and color
void lcd_DrawBmp (int ix0,int iy0, int iwidth, int iheight, unsigned short *pucBmp);// image position ,size,and image data

void lcd_SetPixel(int x, int y, unsigned int uicolor)
{
while(1)
{
if((x < LCD_WIDTH) && (y < LCD_HEIGHT))
{
s_frameBufs[y][x] = uicolor & 0xff;
s_frameBufs[y][x+1] = (uint8_t)uicolor >>8;

// s_frameBufs[y][x] = uicolor ;
}
}

}

void lcd_DrawBmp(int ix0,int iy0, int iwidth, int iheight, unsigned short *pucBmp)
{
uint16_t ix, iy;
uint16_t uicolor;

for (iy = iy0; iy < iheight + iy0; iy++)
{
for (ix = ix0; ix < iwidth + ix0; ix = ix+2)
{
uicolor = *pucBmp++;
lcd_SetPixel(ix, iy, uicolor);
}
}

}

3.I do not use the APP_FillBuffer function instead of lcd_DrawBmp （0,0,320,240，(unsigned short *)image）

then lcdConfig.bpp=kLCDC_16BPP565 instead of 1BPP.

the lcd other configs are the same as the demo.

but ,download this program ,the TFT lcd do not show image,even nothing.

Original Attachment has been moved to: image.c.zip

Re: LPC54608 Board cannot display RGB565 image

kerryzhou — Fri, 25 Aug 2017 08:00:23 GMT

Hello Zhixiang,

I got your updated information about this question in our Chinese EEFOCUS forum, that you already solved this problem.

You said, the official code about color palette have problem, you write your own function then solved the problem.

So, could you also share the details about your solutions?

Thanks a lot.

Have a great day,
Kerry

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LPC54608 Board cannot display RGB565 image

Re: LPC54608 Board cannot display RGB565 image